试析水文信息化技术在水利防汛工作中的应用

我国受到季风气候的影响,降水量季节变化比较大,导致河道的径流量季节变化也很大,降水异常极易引发洪水灾害。在水利防汛工作中,水文信息技术的应用,给水利防汛工作产生了积极的作用。本文在水文信息化技术应用之前水利防汛工作存在的问题的基础上,结合具体的防汛实例,对信息化技术在水利防汛工作中的应用效果进行了探讨。     

新加坡收入分配的变化及其启示

目前,中国的社会收入分配格局出现失衡态势,反映收入差距的基尼系数已超过国际警戒线。尽管中国与新加坡的国情相差较大,收入分配制度也迥然不同,但新加坡解决社会收入分配问题的经验仍值得借鉴。     

液相串联质谱仪检测水产品中相关抗生素残留的研究

通过液相串联质谱仪分析水产品的相关抗生素,借助相关水产品样品对样品定性、定量分析,本文将借助HLB固相萃柱在水产品富集、净化后,研究抗生素残留,液相串联质谱仪对水产品的抗生素残留分析中有着很广泛的应用。     

扩孔理论在静压桩贯入过程中的应用研究

在静压桩贯入土体过程中,桩周及桩端土体的受力和变形是一个相互影响并且极为复杂的演变过程。对扩孔理论在桩周及桩端土体的应用研究成果进行了综述,总结了近年来扩孔理论在桩周及桩端土体应用的研究进展。通过实例分析,得出球孔理论应用在桩端土体过程中半径修正的必要性,并预测了静压桩贯入土体过程理论的发展趋势。     

基于图论的排样残料特征提取方法研究

对于一些零件图形较复杂的排样问题,由于其自身形状的原因,不管如何排样,都会存在残料。针对这一问题,结合图论的基本原理,提出了一种基于图论的排样残料特征提取算法。首先建立几何规则,对排样图进行处理后建立有向图,将残料特征提取问题转化为求图的内部面问题;然后构建了一种基于深度遍历的链式搜索算法对简化后的图进行遍历,提取出残料特征;最后给出了算法的流程,并以实例验证了该方法的有效性。     

浅谈招投标存在的问题以及相应对策

招投标的引入,为建筑工程市场营造了公平竞争的环境,为降低建筑招标单位投资成本和提高建筑整体质量起到了积极的作用。但目前我国建筑工程招投标存在很多问题,本文针对部分典型问题进行了探讨,并提出了相应的应对措施。     

城中村改造过程村民合法权益可持续保障探讨

目前在我国城中村改造过程中存在着村民合法权益得不到保障的现象。文章从城中村改造的模式入手,探讨了村民合法权益的可持续保障问题,分析了村民权益得不到保障的原因,并就此给出了相应对策。     

Robust scheduling for multi-objective flexible job-shop problems with random machine breakdowns

This study addresses robust scheduling for a flexible job-shop scheduling problem with random machine breakdowns. Two objectives – makespan and robustness – are simultaneously considered. Robustness is indicated by the expected value of the relative difference between the deterministic and actual makespan. Utilizing the available information about machine breakdowns, two surrogate measures for robustness are developed. Specifically, the first suggested surrogate measure considers the probability of machine breakdowns, while the second surrogate measure considers the location of float times and machine breakdowns. To address this problem, a multi-objective evolutionary algorithm is presented in this paper. The experimental results indicate that, compared with several other existing surrogate measures, the first suggested surrogate measure performs better for small cases, while the second surrogate measure performs better for both small and relatively large cases.     

How does growth need strength influence employee outcomes? The roles of hope,leadership, and cultural value

Abstract

Strong growth need is essential if an employee is to be motivated to complete complex and challenging jobs. It is important for organizations to attract employees with high growth need strength and help them achieve positive outcomes. However, limited research has been conducted to examine the mechanism underlying growth need strength’s positive effect on employee outcomes. Based on hope theory, we hypothesized that hope mediates the effect of growth need strength on job performance and affective commitment by transforming employees’ general desire for personal growth into goal-related cognitive thinking, comprising both ‘will’ and ‘ways’. We further hypothesized the moderating effect of transformational leadership, and the joint moderating effect of transformational leadership and individual power distance on the relationship between growth need strength and hope. We tested our hypotheses with data from a sample of 265 subordinate–supervisor dyads from China. Data analysis results supported the mediating role of hope. We found that growth need strength has a stronger effect on hope when transformational leadership is higher, and this effect is the strongest when both transformational leadership and individual power distance are simultaneously higher. The implications of these findings for human resource management research and practice are discussed.     

燃气管道防雷设计的基本原则和方法

本文首先分析了燃气管道可能遭受雷击的主要通道,然后提出了堵塞这些主要危害通道的基本思路和基本技术要求,并对燃气管道防雷设计的基本原则和方法作了详尽的论述,为燃气管道的防雷设计提供了实践依据。